Collaboration for Oncology Data in Europe (CODE) is an alliance that brings together patient associations, charities and treatment centers in Europe. The main aim of CODE is to help build a pan-European oncology data network to facilitate data sharing. Here, Ashley Woolmore, Initiative Lead for CODE, stresses the need to understand clinical practice in real time, and highlights how CODE have ensured data sharing complies with privacy regulations to protect patients. This video was recorded at the UK Oncology Forum (OF) 2018, held in Liverpool, UK.